Hydraulics and Fluid Mechanics - Mechanical Engineering Questions and Answers

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According to Bazin's formula, the discharge over a rectangular weir is \(\sqrt{2g}\times H^\frac{3}{2}\) where m is equal to

\( 0.405 + \frac { 0.003} { H }\)

\( 0.003 + \frac { 0.405} { H }\)

\( 0.405 + \frac { H }{0.003}\)

\( 0.003 + \frac { H }{ 0.405}\)

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A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. Which of the following statement is correct?

The pressure on the wall at the liquid level is minimum.

The pressure on the bottom of the wall is maximum.

The pressure on the wall at the liquid level is zero, and on the bottom of the wall is maximum

The pressure on the bottom of the wall is zero.

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Water is a __________ fluid.

real

ideal

newtonian

non-newtonian

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The celerity (velocity) of a pressure wave in a fluid is given by (where K = Bulk modulus, and Ï = Density of the fluid)

\(\sqrt{K.\rho}\)

\(\sqrt{K/\rho}\)

\(\sqrt{\rho/K}\)

\(K.\rho\)